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Remembering Benoit Mandelbrot. 20 November 1924 – 14 October 2010. First Citizen of Science. (1924 – 2010). Father of Fractal Geometry. (1924 – 2010). Theory of Roughness. The Fractal Geometry of Nature. (1924 – 2010). 1977. 1982. 1985. December 6, 1982 Leo Kadanoff
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Remembering Benoit Mandelbrot 20 November 1924 – 14 October 2010
First Citizen of Science (1924 – 2010)
Father of Fractal Geometry (1924 – 2010)
Theoryof Roughness The Fractal Geometry of Nature (1924 – 2010)
1977 1982
1985 December 6, 1982 Leo Kadanoff University of Utah The year when I metBenoit MandelbrotandRichard F. Voss
How Mountains turn into Clouds … A completely synthetic mathematical construction of mountains and clouds A Masterpiece by Richard F. Voss
1991... PeitgenJürgensSaupe MaletskyPercianteYunker
Mandelbrot Set: The most complex object mathematics has ever seen
Iteration Iteration of rational functions Theory of Julia & Fatou~1918
Newton's Method for x3-1 I studied thatin the fall of 1982at the University of Utah
Julia Sets "The iteration does not escape to infinity" "The Prisoner Set"
z b a
z b a 1/z
z b a
connected not connected dust
connected not connected Cantor Set (super) infinite dust
Two simple Julia Sets -2 +2
Two simple Julia Sets -2 +2
The Mandelbrot Set Computer (Pixel) Graphics Making a picture:(b/w) sequence becomes unbounded"escapes" C64: 1982 16 colors Macintosh: 1984 b/w--------------------------RGB 256x256x256only in few research labsUniversity of Utah sequence remains bounded"imprisoned" 1980
1 1/4 -2 -1
The Mandelbrot Set Making a picture:b/w all sequences become unbounded"escape" 2 some sequences remain bounded"imprisoned"
1982/83Salt Lake City The Mandelbrot Set "escapes"takes 13 steps to landoutside circle "escapes"takes 5 steps to landoutside circle "imprisoned" 2 Making a picture:(color)
Around the Mandelbrot Set Powers of Ten
Similarity between Julia Sets and the Mandelbrot Set
Mandelbrot Set 1990 (Peitgen/Jürgens/Saupe) Electrostatic Potential(key for mathematical understanding)